Creates a tunnel between a remote server and your local machine. I use this for showing off what's currently in development to outside users. It could also be used for testing against APIs that need to see your machine.

ssh_tunnel.rake

TUNNEL_USERNAME = "deploy"
TUNNEL_HOST = "255.255.255.255"
TUNNEL_PORT = 3000
LOCAL_PORT = 3000

desc "Tunnel to a remote host"
task :tunnel => :environment do
  puts "Tunnel established from #{TUNNEL_HOST}:#{TUNNEL_PORT} to 127.0.0.1:#{LOCAL_PORT}"
  system "ssh -nNT -g -R *:#{TUNNEL_PORT}:127.0.0.1:#{LOCAL_PORT} #{TUNNEL_USERNAME}@#{TUNNEL_HOST}"
end